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  • 1
    Electronic Resource
    Electronic Resource
    Influence of particle size on the pressure fluctuations and slugging in a fluidized bed (1984)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 30 (1984), S. 513-517 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690300331
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  • 2
    Electronic Resource
    Electronic Resource
    Electrokinetic-potential fluctuations produced by pipe flow turbulence (1967)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 13 (1967), S. 266-272 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: The distribution across a pipe of turbulent intensities, shearing stress, and energy spectra are inferred from measured electrokinetic-potential fluctuations in a fully developed flow of distilled water in a 2.54-cm. diameter glass pipe. These quantities are shown to be in good agreement with those obtained by Laufer and Sandborn with hot-wire anemometers for air flows at the same mean Reynolds number. A tentative analytical model of the phenomenon is constructed and analyzed by Maxwell's electrodynamic field equations for a nonmagnetized medium moving with a velocity which is much smaller than the velocity of light. A set of equations governing the interrelation between the electrokinetic-potential fluctuations and the turbulent velocity-fluctuation components of the flow field in fully developed pipe flow is deduced. Fourier transforms are then introduced and simple relations between the electrokinetic-potential fluctuations and velocity fluctuations are obtained.
    Additional Material: 16 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690130216
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  • 3
    Electronic Resource
    Electronic Resource
    Über die Umsetzung des Kaliumnitrosodisulfonats mit Hydrazin und Acethydrazid (1953)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 274 (1953), S. 293-296 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Kaliumnitrosodisulfonat wirkt dehydrierend auf Hydrazin und Acethydrazid unter Entwicklung von 1 Mol Stickstoff auf 4 Mole Disulfonat. Auf Grund dieser Reaktion werden eine gasvolumetrische und eine maßanalytische Bestimmungsmethode für das Nitrosodisulfonat mit Acethydrazid bzw. Hydrazinsulfat angegeben.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19532740412
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  • 4
    Electronic Resource
    Electronic Resource
    Die Zerfallsgeschwindigkeit des Kaliumnitrosodisulfonats in essigsaurer und natron-alkalischer Lösung (1954)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 275 (1954), S. 113-120 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die Zerfallsgeschwindigkeit des Kaliumnitrosodisulfonats in 0,01 bis 10 n Essigsäure und 1 bis 4 n Natronlauge sowie in Puffergemischen von pH = 1,25 bis 2,20 wird bei verschiedenen Temperaturen kolorimetrisch gemessen. Die Reaktion verläuft in verdünnten Lösungen unimolekular. In einem pH-Bereich von etwa 2,4 bis 12,5 besitzt die Reaktion eine Induktionsperiode. In Puffergemischen ist die Zerfallsgeschwindigkeit bei 15°, 20°, 25° und 30° eine geradlinige Funktion der pH-Werte.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19542750112
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  • 5
    Electronic Resource
    Electronic Resource
    Steric effects induced by solvent association. 29Si NMR chemical shifts in trimethylsiloxysteroids controlled by solvent accessible surface (1994)
    Chichester : Wiley-Blackwell
    Organic Magnetic Resonance 32 (1994), S. 394-398 
    Details
    ISSN: 0749-1581
    Keywords: Steric effects ; Solvent effects ; 29Si NMR ; Steroids ; Trimethylsilyl derivatives ; Steric shifts ; Solvent accessible surface ; Steric hindrance ; Hydrogen bond ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Chemical shifts of silicon-29 in 39 trimethylsiloxy derivatives of 5α- and 5β-androstanes reported here satisfy an empirical linear correlation with terms describing molecular geometry. The steric 29Si chemical shifts are controlled by association of the silyl ethers with the hydrogen bonding solvent. The chemical shifts measured in dilute solutions show a dependence on the surface of the oxygen atom accessible to the solvent for hydrogen bonding. The steric upfield shifts are due to steric hindrance to hydrogen bonding which itself produces downfield shifts.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mrc.1260320704
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